Line data    Source code

       1             : /*
       2             :   This file is part of TALER
       3             :   (C) 2021 Taler Systems SA
       4             : 
       5             :   TALER is free software; you can redistribute it and/or modify
       6             :   it under the terms of the GNU General Public License as
       7             :   published by the Free Software Foundation; either version 3, or
       8             :   (at your option) any later version.
       9             : 
      10             :   TALER is distributed in the hope that it will be useful, but
      11             :   WITHOUT ANY WARRANTY; without even the implied warranty of
      12             :   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      13             :   GNU General Public License for more details.
      14             : 
      15             :   You should have received a copy of the GNU General Public
      16             :   License along with TALER; see the file COPYING.  If not, see
      17             :   <http://www.gnu.org/licenses/>
      18             : */
      19             : /**
      20             :  * @file testing/testing_api_cmd_change_auth.c
      21             :  * @brief command(s) to change CURL context authorization header
      22             :  * @author Christian Grothoff
      23             :  */
      24             : #include "platform.h"
      25             : #include "taler_json_lib.h"
      26             : #include <gnunet/gnunet_curl_lib.h>
      27             : #include "taler_testing_lib.h"
      28             : 
      29             : 
      30             : /**
      31             :  * State for a "authchange" CMD.
      32             :  */
      33             : struct AuthchangeState
      34             : {
      35             : 
      36             :   /**
      37             :    * What is the new authorization token to send?
      38             :    */
      39             :   const char *auth_token;
      40             : 
      41             :   /**
      42             :    * Old context, clean up on termination.
      43             :    */
      44             :   struct GNUNET_CURL_Context *old_ctx;
      45             : };
      46             : 
      47             : 
      48             : /**
      49             :  * Run the command.
      50             :  *
      51             :  * @param cls closure.
      52             :  * @param cmd the command to execute.
      53             :  * @param is the interpreter state.
      54             :  */
      55             : static void
      56           0 : authchange_run (void *cls,
      57             :                 const struct TALER_TESTING_Command *cmd,
      58             :                 struct TALER_TESTING_Interpreter *is)
      59             : {
      60           0 :   struct AuthchangeState *ss = cls;
      61             : 
      62             :   (void) cmd;
      63           0 :   ss->old_ctx = is->ctx;
      64           0 :   if (NULL != is->rc)
      65             :   {
      66           0 :     GNUNET_CURL_gnunet_rc_destroy (is->rc);
      67           0 :     is->rc = NULL;
      68             :   }
      69           0 :   is->ctx = GNUNET_CURL_init (&GNUNET_CURL_gnunet_scheduler_reschedule,
      70           0 :                               &is->rc);
      71           0 :   GNUNET_CURL_enable_async_scope_header (is->ctx,
      72             :                                          "Taler-Correlation-Id");
      73           0 :   GNUNET_assert (NULL != is->ctx);
      74           0 :   is->rc = GNUNET_CURL_gnunet_rc_create (is->ctx);
      75           0 :   if (NULL != ss->auth_token)
      76             :   {
      77             :     char *authorization;
      78             : 
      79           0 :     GNUNET_asprintf (&authorization,
      80             :                      "%s: %s",
      81             :                      MHD_HTTP_HEADER_AUTHORIZATION,
      82             :                      ss->auth_token);
      83           0 :     GNUNET_assert (GNUNET_OK ==
      84             :                    GNUNET_CURL_append_header (is->ctx,
      85             :                                               authorization));
      86           0 :     GNUNET_free (authorization);
      87             :   }
      88           0 :   TALER_TESTING_interpreter_next (is);
      89           0 : }
      90             : 
      91             : 
      92             : /**
      93             :  * Call GNUNET_CURL_fini(). Done as a separate task to
      94             :  * ensure that all of the command's cleanups have been
      95             :  * executed first.  See #7151.
      96             :  *
      97             :  * @param cls a `struct GNUNET_CURL_Context *` to clean up.
      98             :  */
      99             : static void
     100           0 : deferred_cleanup_cb (void *cls)
     101             : {
     102           0 :   struct GNUNET_CURL_Context *ctx = cls;
     103             : 
     104           0 :   GNUNET_CURL_fini (ctx);
     105           0 : }
     106             : 
     107             : 
     108             : /**
     109             :  * Cleanup the state from a "authchange" CMD.
     110             :  *
     111             :  * @param cls closure.
     112             :  * @param cmd the command which is being cleaned up.
     113             :  */
     114             : static void
     115           0 : authchange_cleanup (void *cls,
     116             :                     const struct TALER_TESTING_Command *cmd)
     117             : {
     118           0 :   struct AuthchangeState *ss = cls;
     119             : 
     120             :   (void) cmd;
     121           0 :   if (NULL != ss->old_ctx)
     122             :   {
     123           0 :     (void) GNUNET_SCHEDULER_add_now (&deferred_cleanup_cb,
     124           0 :                                      ss->old_ctx);
     125           0 :     ss->old_ctx = NULL;
     126             :   }
     127           0 :   GNUNET_free (ss);
     128           0 : }
     129             : 
     130             : 
     131             : struct TALER_TESTING_Command
     132           0 : TALER_TESTING_cmd_set_authorization (const char *label,
     133             :                                      const char *auth_token)
     134             : {
     135             :   struct AuthchangeState *ss;
     136             : 
     137           0 :   ss = GNUNET_new (struct AuthchangeState);
     138           0 :   ss->auth_token = auth_token;
     139             : 
     140             :   {
     141           0 :     struct TALER_TESTING_Command cmd = {
     142             :       .cls = ss,
     143             :       .label = label,
     144             :       .run = &authchange_run,
     145             :       .cleanup = &authchange_cleanup
     146             :     };
     147             : 
     148           0 :     return cmd;
     149             :   }
     150             : }
     151             : 
     152             : 
     153             : /* end of testing_api_cmd_change_auth.c  */